Concrete-mixer.



U. H. FOLEY.

CONCRETE MIXER.

APPLICATION FILED MAR.18, 1911.

1,004,766. Patented Oct. 3, 1911.

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Witnesses Witnesses 0. H. FOLEY. CONCRETE MIXER.

APPLICATION FILED MAR; 18, 1911.

1,004,766. Patented 001;.3, 1911.

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CONCRETE-MIXER.

Specification of Letters Patent.

Patented Oct. 3, 1911.

Application filed March 18, 1911. Serial No. 615,293.

T 0 alloflwm it may concern:

Be it known that I, CHARLES H. FOLEY, a cltizen of the United States, residing at Sherman, in the county of Grayson and State of Texas, have lnvented a new and" useful Concrete-Mixer, of which the'following is a specification.

It is one object of the present invention to provide a mixer for concrete and mortar, of light and portable form, the construction of the device being such that the mixing element proper will be disposed relatively near to the ground, so that the material which is to be mixed, need not be elevated to a great height.

A further object of the invention is to provide a device of the character above mentioned, having novel means for delivering the unmixed material into the drum, the structure likewise having novel means for discharging the mixed material from the drum.

A further object of the invention is to provide a machine of the character above referred to, having a drum equipped with a novel form of mixing blades, cooperating with the means whereby the unmixed material is delivered into the drum, and with the means whereby the mixed material is discharged from the drum.

A further object 'of the invention is to improve generally, both as regard efliciency and strength, concrete and mortar mixers, of the type to which'this invention appertains.

lVith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made with in the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings,Figure 1 shows the invention in top plan; Fig. 2 is a side elevation; Fig. 3 is a plan of the inner surface of the drum, developed; Fig. 4 is a fragmental transverse section of the drum; Fig. 5 is a fragmental perspective showing the discharge member, and the means whereby the same is mounted for both vertical swinging movement, and for horizontal advancement into, and retraction from, the mixing drum; and Fig. 6 is a section of the entire drum, taken on the line 66 of Fig. 4.

In carrying out the invention there is provided, as a primary and fundamental element, a frame 1, suitably bridged by longitudinal truss rods 2. The frame 1 carries the rear axle 3, the latter carrying the rear wheels 4. Mounted in the frame 1, is the front axle 5, carrying the front wheels 6. As will be clearly seen by reference to Fig. 1, noting the point at which the numeral 7 is applied to the front wheels 6 therein, and by comparing Fig. 1 with Fig. 2, it will be seen that the hubs 8 of the front wheels 6 are located entirely within the contour of the front wheels. Moreover, as shown at 9, the frame'l is offset, adjacent its forward end, to dispose the front wheels 6 within the contour of the frame 1, when the device is viewed in top plan.

Owing to the fact that the hubs 8 of the front wheels 6, are housed within the contour of the front wheels, and owing to the fact that the frame 1 is offset as shown at 9, the front wheels 6, and their hubs 8, do not outstand beyond the lateral, rear portions of the frame 1. Therefore, a wheelbarrow or the like, may be trundled relatively close to the frame 1, to discharge its contents into the mixing member of the structure, to be described hereinafter.

Supported by the frame 1, are transversely disposed shafts 10 carrying rollers 11, adapted to register in circumferential ways 14 upon, a drum 15. Between the ways 14, the drum 15 is surrounded by a gear 16, adapted to mesh into a pinion 17, carried by a transverse shaft 18, the ends of which are journaled for rotation in framesupported bearings 19. Secured to the shaft 18 is a pinion 20, engaged by a sprocket chain 21, the sprocket chain 21 being trained about a pinion 22, secured to the shaft 23 of an engine 2-1; supported upon a frame-carried platform 25.

In'the end walls 26 of the drum there are axial openings 27 and 28, the opening 27 be ing referred to hereinafter as the delivery opening, since it is through this opening that the unmixed. material is delivered into the drum 15. The opening 28 is the discharge opening, and it is through this opening that the mixed material passes out of the drum 15.

Disposed transversely of the frame 1 is a delivery spout 29, the same being provided with suitable operating handles 30. The delivery spout 29 is supported for tilting movement upon a bracket 31 which, in its turn, is supported by the frame 1. The inner end of the delivery spout 29 protrudes into the opening 27 in the drum 15.

Upon the opposite side of the structure from the delivery spout 29, an arched auxiliary frame 32 is positioned. The lower ends of the auxiliary frame 32 are pivotally connected with the frame 1, as shown at 33, so that the frame 32 may be swung toward and away from the drum 15. The discharge spout is denoted by the numeral 34, the spout 34 being pivotally supported, as shown at 35, upon the auxiliary frame 32. Adjacent its outer end, the discharge spout 34 is equipped with suitable operating handles 36. By tilting the frame 32 upon its pivotal mounting 33, the inner end of the discharge spout 34 may be advanced into the delivery opening 28, and be retracted therefrom.

Noting Fig. 3, and comparing the same with Fig. 4, the delivery edge of the drum is denoted by the numeral 37, the discharge edge of the drum by the numeral 38, the numeral 39 denoting the edges of the drum which are united to give a circular form to the drum. From the edge 37 of the drum, blades 40 project inwardly. These blades 40 taper adjacent their inner ends, as shown at 41, the blades being formed with angles, as shown at 42. Projecting inwardly from the edge 38 of the drum, are relatively short, straight blades 43, the blades 43 being tapered, as shown at 44. The blades 43 alternate, circumferentially of the drum, with the blades 40, and the adjacent, inner ends of the blades 40 and 43 are disposed at an angle to the axis of the drum.

In practical operation, when the engine 24 is in motion, the chain 21 will impart ro tation to the shaft 18, the shaft 18 through the instrumentality of the intermeshing members 17 and 16, imparting rotation to the drum 15.

The material which is to be mixed, is shoveled, or dumped from wheel-barrows, into the delivery spout 29. hen the proper mixture has been secured in the delivery spout 29, the said spout is tilted upon the bracket 31, to discharge its contents inside of the drum 15. The material from the delivery spout 29 will fall upon the inner surface of the drum, to be received by the blades 40, the material resting in the angles 42 of the blades. hen the drum 15 is rotated, in the manner hereinbefore described, the material will be carried upwardly, and be mixed thoroughly. Moreover, as the material is thus elevated, it will travel along the blades 40 in the direction of the arrow X in Fig. 3, toward and upon the blades 43, which last named blades will work the material toward the edge 38 of the drum. The material, after having been mixed and elevated, will drop into the discharge spout 34.

Referring particularly to Fig. 5, it will be seen that by tilting the frame 32 upon its pivotal mountings 33, the amount of the discharge 34 which will project within the drum 15, may be regulated, thus regulating, likewise, the load which the spout 34 will receive. The spout 34, obviously, may be tilted upon its pivotal connection 35 with the frame 32, so as to lower the outer end of the spout 34, whereupon the mixed material will drop into any suitable receptacle provided for its reception. The operation of charging and discharging the drum 15 may be carried on without interruption. The spout 29 may be filled and dumped into the drum 15, and while the spout 34 is being dumped, the drum will rotate sufficiently to secure a thorough admixture of the material which is therein. With a small operating force, therefore, a continuous mixing process may be carried forward rapidly, and without interruption.

Owing to the large diameter of the drum 15, the spout 29 may be positioned relatively close to the ground, thereby rendering the charging of the drum, a matter of no difficulty. Moreover, owing to the relatively large diameter of the drum, the mixture within the drum is given a considerable fall, thereby effecting a thorough admixture of the material. The structure is such, that the device as an entity, is positioned relatively close to the ground, it being possible to dump the material into the drum, from a relatively low platform, directly from a wheel-barrow, and to receive the mixed material from the drum, into a Wheel-barrow upon the opposite side.

Having thus described the invention, what is claimed is:

In a device of the class described, a drum having in its interior, a set of angularly formed blades, projecting inwardly from one edge of the drum, and a set of straight blades projecting inwardly from the other edge of the drum, the blades of one set alternating with the blades of the other set,

circumferentially of the drum, and the blades of both sets being spaced, circumferentially of the drum, the blades of one set overlapping the blades of the other set,

CHARLES H. FOLEY.

transversely of the drum, the blades of both lVitnesses: sets having their free ends spaced from the O. J. BELDEN, edges of the drum. E. E. MYATE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

